Reviewed:
I recently read a couple of stories by Megumi Kashuahara and found them quite enjoyable.
This story, "Convergence", is really interesting. I'm not a mathematician, and you don't need to be to enjoy the story. While the premise involves advanced mathematics, the real story is about human dynamics.
A teenage girl discovers an intellectual challenge and thinks about possible ways to solve it. She's unusual in that she has an extreme ability to concentrate for long periods of time as she analyzes complex issues, and has a dogged determination to reach the correct conclusion on any puzzle she investigates.
She also has an extraordinary sense of self confidence and the ability to stand up to acknowledged experts who otherwise devaluate her and dismiss her because of her age and ethnicity. The interactions with renowned academics, and her mother, are wonderful to read.
I really enjoyed this story and hope you will, too.